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Parasitology quiz 3 > Non-bursate nematodes > Flashcards

Non-bursate nematodes Flashcards

1
Q

non-bursate nematodes taxonomy

A

kingdom- Animalia

phylum-Nematoda- non-bursate

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2
Q

oxyurida alt name

A

pinworms

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3
Q

oxyurida taxonomy

A

kingdom- Animalia
phylum-Nematoda- non-bursate
order- oxyurida

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4
Q

oxyurida life cycle

A
  • direct life cycle
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5
Q

oxyurida id

A
  • short esophagus w/ bulb at base

- pointed tail

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6
Q

oxyurida organ effected

A

cecum and colon

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7
Q

oxyuris equi taxonomy

A

kingdom- Animalia
phylum-Nematoda- non-bursate
order- oxyurida

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8
Q

oxyuris equi host

A

equids

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9
Q

oxyuris equi lifecycle

A

Gravid females travel to rectum & out through anus -> Deposit eggs on perianal skin -> Larvae develop in egg -> Eggs ingested -> Larvae hatch in small intestine

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10
Q

oxyuris equi organ

A

cecum and colon

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11
Q

oxyuris equi dx

A
  • puritis ani ie itchy butt and horse rubs everywhere spreading eggs
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12
Q

oxyuris equi geography

A

world wide

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13
Q

enterobius vermicularis alt name

A

human pinworm

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14
Q

enterobius vermicularis taxonomy

A

kingdom- Animalia
phylum-Nematoda- non-bursate
order- oxyurida

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15
Q

enterobius vermicularis life cycle

A
  • direct
  • Gravid females travel to rectum & out through anus -> Deposit eggs on perianal skin -> Larvae develop in egg -> Eggs ingested -> Larvae hatch in small intestine
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16
Q

enterobius vermicularis id

A
  • eggs flat on one side

- eggs can also hatch at deposition site then crawl back through anus into rectum until reach colon

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17
Q

enterobius vermicularis organ effected

A

large intestine and rectum

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18
Q

enterobius vermicularis dx

A

Little harm

  • Puritis ani - Heavy infection cause intestinal irritation
  • Female worms can migrate into vagina causing vaginitis
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19
Q

enterobius vermicularis location

A

world wide in cooler climates

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20
Q

enterobius vermicularis get how

A

ONLY IN PPL GET IT FROM EACH OTHER

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21
Q

enterobius vermicularis tx

A

treat entire family with pyrantel

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22
Q

ascaridida taxonomy

A

kingdom- Animalia
phylum-Nematoda- non-bursate
order- ascaridida

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23
Q

ascaridida host

A
  • fish, amphibian, reptiles, birds, mammals

- intermediate or paratenic hosts

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24
Q

ascaridida id

A

large and cream colored

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25
Q

ascaridida organ/ cell effected

A

small intestine and stomach

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26
Q

ascaris suum taxonomy

A

kingdom- Animalia
phylum-Nematoda- non-bursate
order- ascaridida

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27
Q

ascaris suum host

A

swine

- zoonotic (larvae only)

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28
Q

ascaris suum id

A

males a foot long and females longer

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29
Q

ascaris suum life cycle

A
  • Direct life cycle egg w/ L3 ingested -> Hatches -> Migrate to liver & lungs -> C up & swallowed -> Develop to adults in small intestine
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30
Q

ascaris suum dx

A
  • interfere with nutrition
  • liver migrations cause mechanical damage, hypersensitive, milk spots
  • lung migrations cause mechanical damage, inflam
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31
Q

ascaris suum geo

A

cosmopolitan

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32
Q

parascaris equorum taxonomy

A

kingdom- Animalia
phylum-Nematoda- non-bursate
order- ascaridida

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33
Q

parascaris equorum host

A
  • young horses < 1 yr
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34
Q

parascaris equorum id

A

LONG longer than ascaris suum which are a foot long

35
Q

parascaris equorum lifecycle

A
  • direct
  • egg w/ L3 ingested -> Hatches -> Migrate to liver & lungs -> C up & swallowed -> Develop to adults in small intestine
36
Q

parascaris equorum organ effected

A

small intestine

37
Q

parascaris equorum dx

A
  • enteritis, gut perforation, intestinal blockage, liver spots, lung disease
38
Q

parascaris equorum loation

A

cosmopolitan

39
Q

parascaris equorum tx

A

resistant to ivermectin

40
Q

toxocara canis taxonomy

A

kingdom- Animalia
phylum-Nematoda- non-bursate
order- ascaridida

41
Q

toxocara canis host

A
  • dogs
  • also use paratenic
  • ZOONOTIC
42
Q

toxocara canis lifecycle

A

Eggs in feces become infective in soil -> Ingested -> Larva migrate through liver & lungs to small intestine
- If trans- placental larva arrest in bitch then migrate into puppy during preg -> Found in liver & lungs at birth

43
Q

toxocara canis transmission

A
  • transplacental

- can be infected w/ egg or larvae in paratenic host

44
Q

toxocara canis organ effected

A

small intestine

45
Q

toxocara canis dx

A
  • rupture of intestinal mucosa, impaction, distended abdomen

- pups born die with these lesions several weeks old

46
Q

toxocara canis ppl dx/ larvae where

A
  • ZOONOTIC
  • visceral larval migrant in ppl (25% of Americans)
  • larvae in liver, skeletal muscle, brain
47
Q

toxocara canis ppl infected how

A

ppl infected by ingesting infective eggs passed in dog feces

48
Q

toxocara cati taxonomy

A

kingdom- Animalia
phylum-Nematoda- non-bursate
order- ascaridida

49
Q

toxocara cati host

A
  • cats

- zoonotic

50
Q

toxocara cati transmissio

A
  • ingesting eggs or paratenic hosts

- no transmammary transmission

51
Q

toxocara cati organ effected

A

small intestine

52
Q

toxocara cati dx

A

not as severe as toxocara canis (still see intestinal/ gi dx?)

53
Q

toxocara cati dx ppl

A
  • visceral larval migrant in ppl

- larvae in liver, skeletal muscle, brain

54
Q

toxocara vitulorum taxonomy

A

kingdom- Animalia
phylum-Nematoda- non-bursate
order- ascaridida

55
Q

toxocara vitulorum host

A
  • cattle

- water baffalo

56
Q

toxocara vitulorum transmission

A

transmammary

57
Q

toxocara vitulorum organ effected

A

small intestine

58
Q

toxocara vitulorum dx

A
  • calves die several weeks old like w/ toxocaris canis
59
Q

toxocara vitulorum location

A
  • tropics

- occasionally us

60
Q

toxacaris leonina taxonomy

A

kingdom- Animalia
phylum-Nematoda- non-bursate
order- ascaridida

61
Q

toxacaris leonina host

A
  • dog, cat, fox
62
Q

toxacaris leonina lifecycle

A
  • direct

- Eggs in feces -> Larvate very quickly -> Swallowed by final host -> Develop in bowel lumen

63
Q

toxacaris leonina organ effected

A

small intestine

64
Q

toxacaris leonina dx

A

no significant pathology

65
Q

toxacaris leonina location

A
  • cooler climate
66
Q

baylisascaris procyonosis alt name

A

raccoon roundworm

67
Q

baylisascaris procynosis taxnomy

A

kingdom- Animalia
phylum-Nematoda- non-bursate
order- ascaridida

68
Q

baylisascaris procynosis transmission

A
  • Eggs shed by raccoon then eaten by other animals & larvae migrate through CNS causing death
  • Dogs probably infected by eating rodents
69
Q

baylisascaris procynosis dx

A
  • severe and deadly dx in children if they ingest eggs

- ocular lesions in adult

70
Q

baylisascaris procynosis host

A
  • raccoons, adult dogs

- zoonotic

71
Q

baylisascaris procyonosis humans dx

A
  • ZOONOTIC
  • visceral larval migrant in ppl (25% Americans)
  • larvae in liver, skeletal muscle, brain
72
Q

anisakis and pseudoterranova taxonomy

A

kingdom- Animalia
phylum-Nematoda- non-bursate
order- ascaridida

73
Q

anisakis and pseudoterranova host

A
  • sea mammals- mainly toothed whales and pinnipeds
  • crustacean 1st intermediate
  • various fish paratenic
  • humans
74
Q

anisakis and pseudoterranova lifecycle

A
  • embed heads into mucosa and attach to empty stomach wall

- when stomach fills w/ food they detach and migrate into food to feed

75
Q

anisakis and pseudoterranova organ effected

A

stomach or small intestine

76
Q

anisakis and pseudoterranova in humans

A
  • visceral larval migrant in ppl (25% of Americans)
  • larvae in liver, skeletal muscle, brain
  • get it form eating sushi
77
Q

pseudoterranova taxonomy

A

kingdom- Animalia
phylum-Nematoda- non-bursate
order- ascaridida

78
Q

pseudoterranova final host + larvae found where

A
  • final: seal

- larvae: cod and haddock

79
Q

pseudoterranova lifecycle

A
  • embed heads into mucosa and attach to empty stomach wall
  • when stomach fills w/ food they detach and migrate into food to feed
  • worms migrate up esophagus and cough out
80
Q

pseudoterranova larvae humans

A
  • larvae migrate out of humans after ingestion
81
Q

anisakis taxonomy

A

kingdom- Animalia
phylum-Nematoda- non-bursate
order- ascaridida

82
Q

anisakis host

A
  • toothed whales

- larvae in salmonids, tuna, other fish

83
Q

anisakis dx

A
  • cause dx in ppl when larvae enter stomach wall

Parasitology quiz 3 (9 decks)

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